Solar Powered Plane

MOUNTAIN VIEW, CA - MAY 03: The Solar Impulse solar electric airplane sits on on the runway at Moffett Field before flying to Pheonix, Arizona, as part of a cross-country trip May 3, 2013 in Mountain View, California. Pilots Bertrand Piccard and Andre Borschberg are attempting the first cross-continental flight in a solar powered plane that can travel day and night. (Photo by Beck Diefenbach/Getty Images)

Experimental Solar Powered Plane Takes Test Flight

MOUNTAIN VIEW, CA - MAY 03: Pilot Bertrand Piccard answers questions before taking off in the Solar Impulse solar electric airplane at Moffett Field on May 3, 2013 in Mountain View, California. Pilots Bertrand Piccard and Andre Borschberg are attempting the first cross-continental flight in a solar powered plane that can travel day and night. (Photo by Beck Diefenbach/Getty Images)

Experimental Solar Powered Plane Takes Test Flight

MOUNTAIN VIEW, CA - MAY 03: The Solar Impulse solar electric airplane sits on on the runway at Moffett Field before flying to Pheonix, Arizona, as part of a cross-country trip May 3, 2013 in Mountain View, California. Pilots Bertrand Piccard and Andre Borschberg are attempting the first cross-continental flight in a solar powered plane that can travel day and night. (Photo by Beck Diefenbach/Getty Images)

Experimental Solar Powered Plane Takes Test Flight

MOUNTAIN VIEW, CA - MAY 03: Pilot Bertrand Piccard answers questions before taking off in the Solar Impulse solar electric airplane at Moffett Field on May 3, 2013 in Mountain View, California. Pilots Bertrand Piccard and Andre Borschberg are attempting the first cross-continental flight in a solar powered plane that can travel day and night. (Photo by Beck Diefenbach/Getty Images)

Experimental Solar Powered Plane Takes Test Flight

MOUNTAIN VIEW, CA - MAY 03: Pilot Bertrand Piccard waves goodbye before taking off in the Solar Impulse solar electric airplane at Moffett Field on May 3, 2013 in Mountain View, California. Pilots Bertrand Piccard and Andre Borschberg are attempting the first cross-continental flight in a solar powered plane that can travel day and night. (Photo by Beck Diefenbach/Getty Images)

Experimental Solar Powered Plane Takes Test Flight

MOUNTAIN VIEW, CA - MAY 03: Pilots Bertrand Piccard (L) and Andre Borschberg answer questions before Piccard took off in the Solar Impulse solar electric airplane at Moffett Field on May 3, 2013 in Mountain View, California. Pilots Bertrand Piccard and Andre Borschberg are attempting the first cross-continental flight in a solar powered plane that can travel day and night. (Photo by Beck Diefenbach/Getty Images)

Experimental Solar Powered Plane Takes Test Flight

MOUNTAIN VIEW, CA - MAY 03: Pilot Bertrand Piccard (R) shakes hands with pilot Andre Borschberg before Piccard takes off in the Solar Impulse solar electric airplane at Moffett Field May 3, 2013 in Mountain View, California. Pilots Bertrand Piccard and Andre Borschberg are attempting the first cross-continental flight in a solar powered plane that can travel day and night. (Photo by Beck Diefenbach/Getty Images)

Experimental Solar Powered Plane Takes Test Flight

MOUNTAIN VIEW, CA - MAY 03: Pilot Bertrand Piccard runs tests before he took off in the Solar Impulse solar electric airplane at Moffett Field on May 3, 2013 in Mountain View, California. Pilots Bertrand Piccard and Andre Borschberg are attempting the first cross-continental flight in a solar powered plane that can travel day and night. (Photo by Beck Diefenbach/Getty Images)

Experimental Solar Powered Plane Takes Test Flight

MOUNTAIN VIEW, CA - MAY 03: Pilot Bertrand Piccard sits in his cockpit before he took off in the Solar Impulse solar electric airplane at Moffett Field on May 3, 2013 in Mountain View, California. Pilots Bertrand Piccard and Andre Borschberg are attempting the first cross-continental flight in a solar powered plane that can travel day and night. (Photo by Beck Diefenbach/Getty Images)

Experimental Solar Powered Plane Takes Test Flight

MOUNTAIN VIEW, CA - MAY 03: Pilot Bertrand Piccard gives a thumbs up before taking off in the Solar Impulse solar electric airplane at Moffett Field on May 3, 2013 in Mountain View, California. Pilots Bertrand Piccard and Andre Borschberg are attempting the first cross-continental flight in a solar powered plane that can travel day and night. (Photo by Beck Diefenbach/Getty Images)

Experimental Solar Powered Plane Takes Test Flight

MOUNTAIN VIEW, CA - MAY 03: Pilot Bertrand Piccard takes off in the Solar Impulse solar electric airplane at Moffett Field on May 3, 2013 in Mountain View, California. Pilots Bertrand Piccard and Andre Borschberg are attempting the first cross-continental flight in a solar powered plane that can travel day and night. (Photo by Beck Diefenbach/Getty Images)

Experimental Solar Powered Plane Takes Test Flight

MOUNTAIN VIEW, CA - MAY 03: Pilot Bertrand Piccard takes off in the Solar Impulse solar electric airplane at Moffett Field on May 3, 2013 in Mountain View, California. Pilots Bertrand Piccard and Andre Borschberg are attempting the first cross-continental flight in a solar powered plane that can travel day and night. (Photo by Beck Diefenbach/Getty Images)

Experimental Solar Powered Plane Takes Test Flight

MOUNTAIN VIEW, CA - MAY 03: Pilot Bertrand Piccard takes off in the Solar Impulse solar electric airplane at Moffett Field on May 3, 2013 in Mountain View, California. Pilots Bertrand Piccard and Andre Borschberg are attempting the first cross-continental flight in a solar powered plane that can travel day and night. (Photo by Beck Diefenbach/Getty Images)

Experimental Solar Powered Plane Takes Test Flight

MOUNTAIN VIEW, CA - MAY 03: Pilot Bertrand Piccard takes off in the Solar Impulse solar electric airplane at Moffett Field on May 3, 2013 in Mountain View, California. Pilots Bertrand Piccard and Andre Borschberg are attempting the first cross-continental flight in a solar powered plane that can travel day and night. (Photo by Beck Diefenbach/Getty Images)